Robot vacuums have become indispensable in our homes. From pet hair to daily dust, these devices keep floors clean with minimal hands-on help. But like any tool, a robot vacuum needs regular upkeep to keep running at peak performance—and to avoid early retirement. Fortunately, the steps to extending your vacuum’s lifespan are simple, and many are directly recommended by manufacturers. Here’s what you need to know to get the most out of your robo-cleaner. 1. Clean it regularly, and it’ll clean for longerThe brushes, rollers, and wheels are where dust and debris accumulate most, making them crit…